Repeating attachment for watches



(No Model.) 4 SheetsSheet. 1.

P. TERSTEGEN. REPEATING ATTACHMENT FOR WATCHES.

No.. 436.162. 4 Patented Sept. 9. 1890.

(No Model.) 4 Sheets-Sheet 2.

P. TERSTBGEN. REPEATING ATTACHMENT FOR WATCHES.

No. 436,162. Patented Sept. 9, 1890.

111: mm: run. co, MLIYnmMmIMTM, 04 c.

(No Model.) 4 Sheets-Sheet 3.

P. TERSTEGEN. BBPEATING ATTACHMENT FOR WATCHES.

No. 436,162. Printed Sept. 9, 1890.

@MW 1V @r g g 4a 47160 7 4 Sheets-Sheet 4.

P. TERSTBGEN. Y RBPEATING ATTACHMENT FOR WATCHES.

Patented Sept. 9, 1890. 2'?- UNITED STATES PATENT OFFICE.

FRED TERSTEGEN, OF ELIZABETH, NEW JERSEY.

REPEATING ATTACHMENT FOR WATCHES.

SPECIFICATION forming part of Letters Patent No. 436,162, datedSeptember 9, 1890. Application filed April 16, 1890- Serial No. 348,148.(No model.)

My present invention relates, first, to the connection of the timemechanism with the repeating mechanism; second, to the application ofrepeating mechanism to stop watches and the connection of the time-trainof such watches with the repeating mechanv ism; third, it relates to thegearing which regulates the striking of the time.

The object of the first part of this invention is to connect therepeating mechanism, when placed on the plate of the watch-movement,with the time-train in both full and three-quarter plate watches; andthis part of the invention, so far as it relates to full-plate watches,consists in connecting the snail of the repeating mechanism by means ofa train of gearing carried from the back plate of the movement throughto the front plate and the cannon-pinion or dial-wheels; as it relatesto three-quarter plate watches, the invention consists in gearing thesnails, when placed on the back of the movement, directly with thecenter-post, which carries the miniite-hand.

The object of the second part of my invention is to connect therepeating mechanism with the time-train of complicated watches known asstop-watches, and this consists in connecting the snail or snails of therepeating mechanism, when placed on the back of the movement, by a trainof gearing with the cannon-pinion or dial-wheels on the front plate ofthe movement.

A further object of the invention is to apply a repeating attachment ormechanism to the back of stop-watches. This consists in a stop watchhaving repeating mechanism placed on its back plate and receiving itsmotion from the cannon-pinion by a train of gearing carried through thewatch-movement. further object of the invention is to fa-v cilitate thesetting of the repeating mechanism. This consists in arranging thesetting mechanism to disconnect from the regulatingwheels when settingthe repeating mechanism and connect with the same when the setting iscompleted and the striking mechanism commences to strike the time.

In the accompanying drawings, Sheet I, Figure 1 represents a repeatingattachment applied directly to the back of a watch-movement without theintervention of a repeaterplate. Fig. 1 is a plan of the under side ofthe cap or bridge on which the regulatingwheels are placed, also showingpartof the train of gearing that connects the snails with thecannon-pinion on the front plate, which is placed on the back plate.Fig. 1 is an edge view of the same, showing also the regulatingwheels.Fig. 2 represents a sectional edge elevation of a watch-movement withoutthe time-train and showing the gearing-connection of the repeatingmechanism with the can non-pinion. Fig. 2 shows that part of thesnail-connecting gearing which is placed on the front plate. Fig. 3represents the repeatingmechanism applied to athree-qnarter-plate watch(without stop-watch attachments) and the connection of the snail withthe centerpost at the back of the movement. Figs. 3

. 3 represent, respectively, a side elevation and a plan of the gearingon athree-quarter-plate watch connecting the snail with the time-train.Fig. 4 represents the under side of a repeaterplate, showing the mannerof connecting the gearing with the snail in full-plate watches. Fig. 5represents a repeating attachment in which the hours and its divisionsare struck by separate racks applied to a three-quarterplate watch, alsoillustrating the connection with the time-train. Sheet II: Fig. 5'represents, on an enlarged scale, the setting and winding mechanism,showing a shifting-wheel disconnected from the regulatinggearing whensetting the repeater; Fig. 5", the same when the repeater is set and theshifting-wheel in connection with the regulating-gearing; Fig. 5, theupper side of the repeater-plate; Fig. 5, details of the gearing. SheetIII: Fig. 6 represents the repeating mechanism applied to a stopwatch.Fig. 6 shows the front plate of the same and the gearing which connectsthe snail of the repeating mechanism with the time-train. Fig. 6 is aside elevation of the stop-watch, showingthe connection of the gearingthrough the movement from the back to the front plate of the repeatingmechanism with the time-train. Fig. 6 represents the repeater plate andbridge of the repeating mechanism detached from the stop-watch. SheetIV: Fig. 7 represents the repeating mechanism or attachment applied toan openface stopwatch. Fig. 7 represents the front plate of the same andthe gearing which connects the snail of the repeating mechanism with thetime-train. Fig. 7 represents the under side of the front plate, showingthe manner of fastening the gearing to the plate. Fig. 8 represents asplit-seconds stopi-wat'ch with the repeater-plate removed; Fig.8rep'-resents the repeater-plate for split-seconds watches with the repeatingmechanism .at tached thereto. Fig. 8 represents theunder bridge of therepeater-plate. Fig. 8frepresents the upper bridge or repeater-plate.Fig. 8 represents one edge view of the repeaterplate or bridges. IReferring to the drawings, A represents the watch-movement, B therepeater-plate, and O the plate or bridge under whichxa're placed theregulating-wheels of the repeating mech: anism.

In Fig. 1 the repeating mechanism is placed directly on the back plateof the watch, the lever, hammers, clicks, bell-wires, springs, 850.,being attached directly to the surface of the said plate. In thisarrangement a two part cap orbridge C C is used for the staffs of theregnlating-wheels, gearing, and snails. The train of gearing forafull-plate watch is arranged as follows: From the cannon-pinion 1 onthe front of the watch (see Figs. 2 and 2) a train of wheelscommunicates the motion of the said pinion to a pinion 2 on one end of astafi c that is passed through the watch-plates from front to back, andon its opposite end carries a pinion 3 above the back plate. This pinionmeshes with a large wheel 4, Figs. 1, 1, and 1", in recess in the underside of bridge 0'. Wl1eel4in turn meshes with the pinion 5 on thesnail-shaft, as represented clearlyin Figs. 1 and 1 The gearing on thefront plate is illustrated in Figs. 2 and 2. In this way, as will bereadily seen, the motion of the minute-hand is communicated to thesnail, which moves the star-wheel 6 carrying the hour-snail 7.

The mode of connecting the repeating mechanism with the time-train, justdescribed, for full-plate watches is also applied to stopwatches. (SeeFigs. 6, 6, and 6 Sheet III.)

Figs. 3, 3, and 3 Sheet I, illustrate the application of the repeatingmechanism to a threequarter-plate watch and its connection with thetime-train. In the representation of the back of a watch, Fig. 3, arepeater-plate B is used to carry the repeating mechanism; but it can beapplied directly 'to the watch-plate, if desired. The connection betweenthe timetrain and the repeating mechanism is made by means of two wheelsmm. The firstis placed on the center-post P, (which may have its endsabove thewheel squared in key-winders,) that moves with the minute-hand.The other wheel w is placed on the staff of the snail that moves thestar-wheel, as shown in Figs. 3 and 3". In this way the repeatingmechanism on the back of the watch is geared directly to the center-postand thence to the timetrain.

Fig. 4 represents the under side of the repeater-plate, which carriesthe repeatingmechanism, showing also that part of the gearing forfull-plate watches which lies on the back plate when a repeater-plate isused. In this case the wheel 4 and pinions 3 and 5 are pivoted to theunder side of the repeater-plate 13 instead of to abridge C, as inFig. 1. The star-wheel 6 and snail 7 (see Fig. 3) are placed on theupper side of the platethe star-wheel in a recess 8, so that it is inposition to be controlled by the escapement-spring u that is attached tothe under side of the plate in a suitable recess, as shown in Fig. 4. Inthis figure are also illustrated the screw-holes and pivot or statfholes for the several parts of the repeating mechanism.

Fig. 5 shows a repeating mechanism in which the hour and its divisionsare struck by separate racks applied to a three-quarter platewatch-movement. This mechanism and the manner of connecting it with aplate and applying it to the back of awatch-movement are fully describedin my patent, No 421,844, dated February 18, 1890, filed April 23, 1884.There'are two snails 7 7'. The former is the hour-snail and the latter afive-minute snail; but I do not limit the invention to this mode ofdividing the time. The snail 7 is geared directly to the center-post P,as in Fig. 3, by the wheels as w, the former on the center-post and thelatter on the snail-staff.

Figs. 5 to 5, Sheet II, show the setting and gearing mechanism of therepeating mechanism in connection with the regulating-Wheels thatcontrol the speed of the striking mech anism. The lever L andwinding-segmentM are connected in the usual manner, which is fullydescribed in my patent above referred to; but the ratchet-wheel on thehourstriking disk 6 is dispensed with as a means of holding thebarrel-wheel, and in its stead is substituted a shifting-wheel 10, whichis connected by an arm 11 with the stafi of the regulatingwvheel 13, soas to move loosely thereon. This shifting-wheel is thrown out ofconnection with the pinion of the anchor or escape wheel 14 when therepeater is set and the mainspring wound up, as shown in Fig. 5; butwhen the repeating mechanism commences to move back to strike the timethe shifting-wheel is thrown in gear with the regulating-wheel 14, asshown in Fig. 5 and thus the strokes of the hammers are separated orregulated by proper intervals.

Sheet III, Fig. 6: The repeating mechanism is applied to a stopwatch inthis example.

For this purpose the bridge D is cut off just beyond the center-post onone side, and an extension D, projecting away from the center-post at asharp angle, is added to the bridge, and is provided beyond theperiphery of the center-seconds or stop-wheel 15' with screw-holes,through which are passed the screws which fasten the end of the bridgeto the watch-plate. The object of shortening the bridge D is to obtainspace for the repeater-plate B, Figs. 6 and 6, between the center-postand the periphery of the watch. The repeater-plates are composed ofupper bridge 0 and lower bridge B. The latter extends from thestartingspring 16 of the stop mechanism at dotted line B to the end ofthe projection B, and the upper bridge 0 extends beyond the lower bridgeand. over the starting-spring of the stop-watch mechanism and terminatesat B Between the end of the repeater-plate and the bridge D a space A isleft on the watch-plate for the split-seconds attachment. The connectionof the repeating mechanism with the time-train in the stop mechanism ismade with the cannonpinion on the front of the watch in the same manneras described heretofore in connection with Figs. 1, 2, and 2, and thewheel or pinion 3 gears directly on wheel or pinion 5 on thesnail-shaft. (Shown in Fig. 6.)

Fig. 6 shows the gearing and connection with the cannon-pinion on thefront of the watch. Fig. 6 showsthe shaftopassed through themovement-plates with the pinions 2 and 3 attached thereto to connect thefront and back gearing together; and Fig. 6 shows an edge view of theupper bridge 0 and the lower bridge B used in stop-watches for theattachment of the repeating mechanism, and shows the wheel'or pinion 5attached to the snail 7 which moves the star-wheel 6 of hour-snail 7.

Sheet IV: Figs. 7 to 7 illustrate the application of the repeatingmechanism or attachment to open-face stop-watches, and Fig. 8 the samewith a split-seconds attachment. In this application the bridge is notshortened; butarecess D is turned in the bridge D at one end for thesnail of the repeater and another recess D in the opposite end for thehammer. The repeating mechanism is connected by suitable gearing throughthe watch-plates with the cannon-pinion on the front of the watch; butthe gearing or connecting wheels in the front plate are arrangeddifferently from those previously described. In Fig. 7 is shown a seriesof wheels leading from the cannon-pinion 1 and set in recesses in theunder side of the front plate, where they are held by a cap-plate F.(See Fig 7 which shows the plate, Fig. 7, inverted.) The said wheelscommunicate motion to the pinion 2 and thence to the repeatingmechanism, as before described. In Figs. 7 and 8, A represents the spaceon the back plate of the watch for the split-seconds attachment 17,which is shown applied to the said space in Fig. 8.

Fig. 8 represents the repeating attachment detached from the watch asused with the stop-watch and split-seconds movements, Figs. 7 and 8.

Fig. S represents the lower plate B of the repeating attachment with thehammersand bell-wires attached, showing also the projection B, to whichthe bell-wires are fastened.

Fig. 8 represents the upper bridge 0 detached from the repeater-plate B,with the hour-piece H indicated by dotted lines.- This hour-piece isplaced in a slot made in the under side of the bridge 0, where itis heldin place by the end I of the escapement-spring a, which lies acrossit,as shown by the dotted lines. The hour-piece is moved and the rack whichstrikes the division of the hour is released in the same manner asdescribed in my patent above referred to.

Fig. 8 is an edge view of the plate B and the bridge C,being placedtogether, and with the several parts of the repeating mechanism whichare held between them exposed.

I do not limit myself to the exact means of making the connectionbetween the repeating mechanism and the time-train in watches hereindescribed and shown, as it is obvious that the same may be variedwithout departing from the principle of my invention.

I claim- 1. In repeating mechanism for watches, the combination, withthe cannon-pinion 1 and the pinion 5 on the snail for the divisions ofthe hour, of a series of wheels connecting pinions 1 and 5 with eachother through the plates of the movement, substantially as specified.

2. A watch-movement having a stop-watch mechanism arranged on its backplate, in combination with a repeating mechanism which is arranged onthe back of the watchmovement and has its snail that receives motionfrom the time mechanism connected with said time mechanism by suitablegearing connecting the said snail with the dialwheels, substantially asspecified.

3. In'combination with a stop-watch mechanism arranged on the back plateof awatchmovement, a back plate of a watch-movement and a repeatingmechanism attached to and arranged on the back plate of a watchmovement,substantially as specified.

4. The combination, in a watch-movement of a back plate, a stop-watchmechanism and a split-seconds mechanism arranged on the saidback plate,and a repeating mechanism arranged on the said back plate and having itssnail that receives motion from the time mechanism connected with saidmechanism by suitable gearing connecting the said snail with thedial-wheels, substantially as specified.

5. The combination of the setting device of a repeating mechanism forwatches and a shifting-wheel which disconnect-s the setting mechanismfrom the regulating-wheels when the repeating mechanism is set andconnects the same with the regulating-wheels .when

I0 connects the same with the regulating-Wheels when the repeatingmechanism commences to operate to strike the time, substantially asspecified.

In testimony that I claim the foregoing as my invention I have hereuntosubscribed my 15 name the 15th day of April, 1890.

FRED TERSTEGEN. In presence of- WILTON O. DONN, ANTON T. HABERMEHL;

